535.606.81 - Advanced Strength Of Materials

Course Structure

The course materials are divided into modules which can be accessed by clicking Modules on the left menu. A module will have several sections including the overview, content, readings, discussions, and assignments. You are encouraged to preview all sections of the module before starting. Most modules run for a period of seven (7) days, exceptions are noted on the Course Outline page.

Course Topics

1. Introduction
2. Stress Theory
3. Strain Theory
4. Linear Stress-Strain Relations
5. Failure Theories
6. Energy Methods
7. Torsion
8. Beam Bending
9. Shear Centers
10. Review

Course Goals

To understand and employ the strength of materials approach to advanced problems in solid mechanics.

Course Learning Outcomes (CLOs)

• Calculate and interpret stress and strain states in linear, elastic, isotropic solids.
• Apply and interpret yield-based failure criteria and their indicated loads and stresses.
• Explain and apply energy method concepts to the analysis of simple structures.
• Calculate the stresses associated with the torsion of complex cross sections and the nonsymmetrical bending of beams.
• Calculate the shear centers of thin-walled beam cross sections.

Textbooks

Boresi, A.P. and R.J. Schmidt (2002). Advanced Mechanics of Materials (6th ed.). J. Wiley Publishers. Hardcopy or eText.

Required Software

While not required, it is strongly recommended that you have Matlab available to you. Matlab is provided to all students free of charge.

Student Coursework Requirements

It is expected that each module will take approximately 7–10 hours per week to complete. Here is an approximate breakdown: reading the assigned sections of the texts (approximately 2–3 hours per week), viewing the provided video lectures (2–3 hours per week) and completing assigned individual and group exercises (3–4 hours per week).

This course will consist of four basic student requirements:

1. Preparation and Participation (Module Discussions) (10% of Final Grade Calculation)

You are responsible for carefully reading all assigned material, completing all assigned exercises and being prepared for discussion. All readings are from the required course text.

When assigned, post your initial response to the discussion questions by the evening of day 4 for that module week. One additional posts, in response to the posts of other student, is required by the evening of day 7 for that module week. Each post contributes to your grade for the module. Your initial post is part one of your grade for module discussions (i.e., Timeliness). Part two of your grade for module discussions is your interaction (i.e., responding to classmate postings with thoughtful responses) with classmates (i.e., Critical Thinking). Just posting your response to a discussion question is not sufficient; we want you to interact with your classmates. Be detailed in your postings and in your responses to your classmates' postings. Feel free to agree or disagree with your classmates. Please ensure that your postings are civil and constructive.

I will monitor module discussions and will respond to some of the discussions as discussions are posted. In some instances, I will summarize the overall discussions and post the summary for the module.

All discussion contributions are due according to the dates in the Course Modules. Late initial posts will be reduced by three letter grades. No credit will be given for any posts posted after day 7 for that module week.

Evaluation of preparation and participation is based on contribution to discussions.

Preparation and participation are evaluated by the following grading elements:

1. Timeliness (50%)
2. Critical Thinking (50%)

Preparation and participation is graded as follows:

100–90 = A—Timeliness [regularly participates; all required postings; early in discussion; throughout the discussion]; Critical Thinking [rich in content; full of thoughts, insight, and analysis].

89–80 = B—Timeliness [frequently participates; all required postings; some not in time for others to read and respond]; Critical Thinking [substantial information; thought, insight, and analysis has taken place].

79–70 = C—Timeliness [infrequently participates; all required postings; most at the last minute without allowing for response time]; Critical Thinking [generally competent; information is thin and commonplace].

2. Assignments (20% of Final Grade Calculation)

Assignments will include both individual and group quantitative exercises. All assignments must be submitted in PDF format. Be sure to review your PDF for clarity before submission. Some document conversions, especially those done with cell phone cameras, can be poor and, consequently, ungradable. Begin each assignment with a cover page identifying the assignment, student(s) and, when appropriate, group submitting the assignment, and the date of submission. Start each problem on a new page and include your name, or group number, and page number indicator (i.e. Page x of y) at the top of the page. Each problem should have a brief problem statement, assumptions, computations, and conclusions/discussion delineated. All Figures and Tables should be captioned and labeled appropriately. For individual assignments, begin each PDF file name with your last name followed by an underscore and then an assignment description. For example, burkhardt_hw1.pdf. Group assignment file names should begin with group number followed by an underscore and an assignment descriptor. For example, group1_exerciseA.pdf.

All assignments are due according to the dates listed in the Course Modules.

Late submissions will be reduced by one letter grade for each week late (no exceptions without prior coordination with the instructors).

Quantitative exercises are graded as follows:

100–90 = A—All parts of question are addressed; All assumptions are clearly stated; All intermediate derivations and calculations are provided; Proper techniques and methodology employed; Answer is technically correct and is clearly indicated; Answer precision and units are appropriate. Minor errors.

89–80 = B—All parts of question are addressed; All assumptions are clearly stated; Some intermediate derivations and calculations are provided; Minor errors in techniques and methodology employed; Answer is technically correct and is indicated; Answer precision and units are appropriate.

79–70=C—Most parts of question are addressed; Assumptions are partially stated; Few intermediate derivations and calculations are provided; Errors in technique and/or methodology employed; Answer is not technically correct but is indicated; Answer precision and units are indicated but inappropriate.

<70=F—Some parts of the question are addressed; Assumptions are not stated; Intermediate derivations and calculations are not provided; Incorrect approach and methodology; The answer is incorrect or missing; The answer precision and units are inappropriate or missing.

3. Group Assignments (20% of Final Grade Calculation)

Several group exercises will be assigned throughout the course.

The course project is evaluated by the following grading elements:

1. Student preparation and participation (30%)
2. Student technical understanding of the course project topic (as related to individual role that the student assumes) (30%)
3. Team preparation and participation (20%)
4. Team technical understanding of the course project topic (20%)

Group assignments are graded as follows:

100–90 = A—Student Preparation and Participation/Team Preparation and Participation: individual/team roles and responsibilities well defined and understood; individual/team well versed in use of Adobe Connect; individual/team work product(s) agreed to, well prepared and available to all team members/ instructors; Student Understanding/Team Understanding: rich in content; full of thought, insight, and analysis.

89–80 = B—Student Preparation and Participation/Team Preparation and Participation: individual/ team roles and responsibilities well defined and understood; individual/team well versed in use of Adobe Connect; individual/team work product(s) agreed to and prepared; Student Understanding/Team Understanding: substantial information; thought, insight, and analysis has taken place.

79–70 = C—Student Preparation and Participation/Team Preparation and Participation: individual/team roles and responsibilities agreed to; individual/team well versed in use of Adobe Connect; individual/team work product(s) prepared; Student Understanding/Team Understanding: generally competent; information is thin and commonplace.

4. Exams (50% of Final Grade Calculation, combined from 25% for Midterm and 25% for Final)

The midterm exam will be available in week 8 and the final exam will be available in the last week of the course. You may use the course text, lecture videos, solved homework problems and your notes to complete the exams. Other references and resources, electronic or in-print, are prohibited. Additional exam details will be provided.

Exams are graded as follows:

100–90 = A—All parts of question are addressed; All assumptions are clearly stated; All intermediate derivations and calculations are provided; Proper techniques and methodology employed; Answer is technically correct and is clearly indicated; Answer precision and units are appropriate. Minor errors.

89–80 = B—All parts of question are addressed; All assumptions are clearly stated; Some intermediate derivations and calculations are provided; Minor errors in techniques and methodology employed; Answer is technically correct and is indicated; Answer precision and units are appropriate.

79–70=C—Most parts of question are addressed; Assumptions are partially stated; Few intermediate derivations and calculations are provided; Errors in technique and/or methodology employed; Answer is not technically correct but is indicated; Answer precision and units are indicated but inappropriate.

<70=F—Some parts of the question are addressed; Assumptions are not stated; Intermediate derivations and calculations are not provided; Incorrect approach and methodology; The answer is incorrect or missing; The answer precision and units are inappropriate or missing.

Final grades will be determined by the following weighting:

Grading Policy

Assignments are due according to the dates posted on the Canvas course site. You may check these due dates in the Assignments section in the corresponding modules. I will post grades one week after assignment due dates.

A grade of A indicates achievement of consistent excellence and distinction throughout the course—that is, conspicuous excellence in all aspects of assignments and discussion in every week.

A grade of B indicates work that meets all course requirements on a level appropriate for graduate academic work. These criteria apply to both undergraduates and graduate students taking the course.

100–98 = A+
97–94 = A
93–90 = A−
89–87 = B+
86–83 = B
82–80 = B−
79–70 = C

Course Policies

All assignment submissions to Canvas must be as single PDF files.

Academic Policies

Deadlines for Adding, Dropping and Withdrawing from Courses

Students may add a course up to one week after the start of the term for that particular course. Students may drop courses according to the drop deadlines outlined in the EP academic calendar (https://ep.jhu.edu/student-services/academic-calendar/). Between the 6th week of the class and prior to the final withdrawal deadline, a student may withdraw from a course with a W on their academic record. A record of the course will remain on the academic record with a W appearing in the grade column to indicate that the student registered and withdrew from the course.

Academic Misconduct Policy

All students are required to read, know, and comply with the Johns Hopkins University Krieger School of Arts and Sciences (KSAS) / Whiting School of Engineering (WSE) Procedures for Handling Allegations of Misconduct by Full-Time and Part-Time Graduate Students.

This policy prohibits academic misconduct, including but not limited to the following: cheating or facilitating cheating; plagiarism; reuse of assignments; unauthorized collaboration; alteration of graded assignments; and unfair competition. Course materials (old assignments, texts, or examinations, etc.) should not be shared unless authorized by the course instructor. Any questions related to this policy should be directed to EP’s academic integrity officer at ep-academic-integrity@jhu.edu.

Students with Disabilities - Accommodations and Accessibility

Johns Hopkins University values diversity and inclusion. We are committed to providing welcoming, equitable, and accessible educational experiences for all students. Students with disabilities (including those with psychological conditions, medical conditions and temporary disabilities) can request accommodations for this course by providing an Accommodation Letter issued by Student Disability Services (SDS). Please request accommodations for this course as early as possible to provide time for effective communication and arrangements.

For further information or to start the process of requesting accommodations, please contact Student Disability Services at Engineering for Professionals, ep-disability-svcs@jhu.edu.

Student Conduct Code

The fundamental purpose of the JHU regulation of student conduct is to promote and to protect the health, safety, welfare, property, and rights of all members of the University community as well as to promote the orderly operation of the University and to safeguard its property and facilities. As members of the University community, students accept certain responsibilities which support the educational mission and create an environment in which all students are afforded the same opportunity to succeed academically. 

For a full description of the code please visit the following website: https://studentaffairs.jhu.edu/policies-guidelines/student-code/

Classroom Climate

JHU is committed to creating a classroom environment that values the diversity of experiences and perspectives that all students bring. Everyone has the right to be treated with dignity and respect. Fostering an inclusive climate is important. Research and experience show that students who interact with peers who are different from themselves learn new things and experience tangible educational outcomes. At no time in this learning process should someone be singled out or treated unequally on the basis of any seen or unseen part of their identity. 
 
If you have concerns in this course about harassment, discrimination, or any unequal treatment, or if you seek accommodations or resources, please reach out to the course instructor directly. Reporting will never impact your course grade. You may also share concerns with your program chair, the Assistant Dean for Diversity and Inclusion, or the Office of Institutional Equity. In handling reports, people will protect your privacy as much as possible, but faculty and staff are required to officially report information for some cases (e.g. sexual harassment).

Course Auditing

When a student enrolls in an EP course with “audit” status, the student must reach an understanding with the instructor as to what is required to earn the “audit.” If the student does not meet those expectations, the instructor must notify the EP Registration Team [EP-Registration@exchange.johnshopkins.edu] in order for the student to be retroactively dropped or withdrawn from the course (depending on when the "audit" was requested and in accordance with EP registration deadlines). All lecture content will remain accessible to auditing students, but access to all other course material is left to the discretion of the instructor.