CBEMS 155 Mechanical Behavior and Design Principles (2014-2015)

CBEMS 155 Mechanical Behavior and Design Principles

(Not required for any major. Selected Elective for ME.)
Catalog Data:

CBEMS 155 Mechanical Behavior and Design Principles (Credit Units: 4) Principles governing structure and mechanical behavior of materials, relationship relating microstructure and mechanical response with application to elasticity, plasticity, yielding, necking, creep, and fracture of materials. Introduction to experimental techniques to characterize the properties of materials. Prerequisite: ENGR 54. Chemical Engineering, Materials Science Engineering, and Mechanical Engineering majors have first consideration for enrollment. Same as ENGRMAE 156. (Design units: 2)

Required Textbook:
. Edition, , 1969, ISBN-13 978-0521866750.

Recommended Textbook:
None
References:
  • Beer and Johnston. Mechanicals of Materials, 2nd Edition, McGraw-Hill.
  • Dieter, Mechanical Metallurgy, 2nd Edition, McGraw-Hill.
Coordinator:
Farghalli A. Mohamed
Relationship to Student Outcomes
This course relates to Student Outcomes: EAC a, EAC c, EAC e, EAC f, EAC i, EAC j, EAC k.
Course Learning Outcomes. Students will:

1. Apply knowledge of mathematics, science, and engineering to concepts and analyses dealing with elasticity, plasticity, failure and the role of the microstructure in influencing the mechanical behavior. (EAC a)

2. Select a material to meet desired needs in terms of strength, weight, and cost. (EAC c)

3. Identify, formulate, and solve engineering problems related to mechanical behavior and to failure by yielding (EAC e)

4. Understand the professional and ethical responsibility related to the selection of a material whose mechanical properties would meet certain design requirements. (EAC f)

5. Understand that materials are continually evolving requiring continuing education to learn about advances in mechanical behavior. (EAC i)

6. Understand contemporary issues related to mechanical behavior of materials. (EAC j)

7. An ability to apply and integrate knowledge from each of the four primary elements of Materials Science and Engineering (structure, properties, processing and performance) to solve problems related to materials selection and design. (EAC k)

Prerequisites by Topic

Structure of materials

Lecture Topics:
  • Types of materials (review)
  • Elasticity
  • Plasticity
  • Tension, compression, and hardness tests
  • Imperfection point, line, and surface
  • Work hardening
  • Strengthening processes
  • Creep and superplasticity
  • Issues related the mechanical behavior of nano materials and other new materials. Design considerations and parameters (based on mechanical properties).
Class Schedule:

Meets for 3 hours of lecture and 1 hour of discussion each week for 10 weeks.

Computer Usage:

Students are encouraged to practice problems which are given in the text and which require the use of computer basic skills.

Laboratory Projects:
  • Tensile test (I Lab period)
  • Grain size effect (1 lab period)
  • Strain rate effect (2 lab period)
  • Impact test (1 lab period)
  • Hardness test (1 lab period)
  • Superplasticity (1 lab period)
  • Creep of materials (1 lab period)
Professional Component

Contributes toward the Materials Science and Engineering Major design experience.

Design Content Description
Approach:

The design activities involve short problems that are given to the students in addition to the homework assignments. These problems address: (a) factor of safety and allowable stress, (b) selection of appropriate materials to meet certain criteria, (c) the role of mechanical properties such as ductility, compatibility, stiffness, and toughness, in designs.

Lectures: 70%
Laboratory Portion: 30%
Grading Criteria:
  • Problem Set: 15%
  • Project Problems: 10%
  • Quizzes (one quiz every other week): 15%
  • Midterm: 20%
  • Final: 40%
Estimated ABET Category Content:

Mathematics and Basic Science: 0.0 credit units

Computing: 0.0 credit units

Engineering Topics: 4.0 credit units

Engineering Science: 2.0 credit units

Engineering Design: 2.0 credit units

Prepared:
April 15, 2014
Senate Approved:
April 9, 2014
Approved Effective:
2014 Fall Qtr