COURSE NUMBER:
ME 382 |
COURSE TITLE:
Mechanical Behavior of Materials |
REQUIRED COURSE OR ELECTIVE COURSE:
Required |
TERMS OFFERED:
Fall, Winter |
TEXTBOOK / REQUIRED MATERIAL:
Mechanical Behavior of Materials by N. Dowling. Engineering Materials 2 by M. F. Ashby and D.R.H. Jones |
PRE / CO-REQUISITES:
MECHENG 211. I, II (4 credits) |
COGNIZANT FACULTY:
E. Arruda |
COURSE TOPICS:
- Bonding, crystal structure, and defects.
- Phase diagrams and equilibrium microstructures.
- Elasticity
- Plasticity: multi-axial yield criteria and hardening mechanisms.
- Kinetics of phase changes.
- Metallic alloys: heat treatment and microstructures.
- Properties of polymers and composites.
- Fracture and linear-elastic fracture mechanics.
- Fatigue - fatigue life and crack growth.
- Creep: mechanisms and creep life.
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BULLETIN DESCRIPTION:
Material microstructures, dislocations and defects; processing and mechanical properties of metals, polymers, and composites; heat treatment of metals; elastic, plastic, and viscoelastic behavior of materials, strain hardening; fracture, fracture mechanics, fatigue and multiaxis loading; creep and stress relaxation; materials-related design issues, materials selection, corrosion and environmental degradation of materials.
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COURSE STRUCTURE/SCHEDULE:
Lecture: 3 days per week at 2.0 hours |
COURSE OBJECTIVES:
for each course objective, links to the Program Outcomes are identified
in brackets.
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- How atomic bonding and microstructure affect the properties of materials [1, 3]
- How processing and composition affect the microstructures of materials [1, 3]
- Mechanical properties of metals, polymers, ceramics, and composites [1]
- How to determine the strength of engineering components [1, 3, 5, 11]
- How to determine the life of engineering components [1, 3, 5, 11]
- How to select materials and use them in the design of engineering components [1, 3, 5, 11]
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COURSE OUTCOMES:
for each course outcome, links to the Course Objectives are identified
in brackets.
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- Understand and explain how the properties of a material may be modified by processing and alloying [1, 2]
- Understand and explain how the modulus and density of a material are affected by bonding and atomic or molecular structure [1]
- Compare two or more competing failure mechanisms to determine which is design limiting [4, 5, 6]
- Interpret mechanical test data, including tensile/compression curves, fatigue-life diagrams, and creep curves [3]
- Interpret binary-phase diagrams to predict equilibrium microstructures [2]
- Understand and explain the role of kinetics in the development of non-equilibrium microstructures [2]
- Understand and explain the hardening mechanisms that occur in metallic alloys, and the heat treatments that allow these mechanisms to be realized [1, 2]
- Use von Mises and Tresca yield criteria to analyze an engineering component subjected to multi-axial loading [4]
- Use linear-elastic fracture mechanics to determine the effect that a crack will have on the structural integrity of components subjected to a static load [4, 6]
- Use Weibull statistics to calculate the probability of failure of brittle materials [3, 4, 6]
- Determine the lifetime of a component containing a crack that is subjected to cyclic loading or environmental loading [5, 6]
- Use a combination of S/N curves, Basquins Law, Goodman or Gerber relationship, and Miners' Law to predict fatigue life [5, 6]
- Understand design and inspection procedures for components subjected to cyclic loading [6]
- Determine the creep life of engineering components at elevated temperatures [5, 6]
- Understand the physical origin of various models for creep of metallic components [1]
- Use time-dependent properties of polymers in design calculations [4, 5, 6]
- Understand and explain the origin of temperature and time-dependent properties of polymers [1]
- Analysis of composites, and an introduction to orthotropic elastic properties [3]
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ASSESSMENT TOOLS:
for each assessment tool, links to the course outcomes are identified
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- Regular homework problems
- Exams
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