Elastic modulus e - Study guides, Class notes & Summaries

Chapter 01: Introduction to Dental Materials MULTIPLE CHOICE 1. Until 1970, which of the following groups of dental auxiliaries were allowed to perform intraoral functions in all states? 1. Dental hygienists 2. Registered dental assistants 3. Certified dental assistants 4. On-the-job trained dental assistants a. 1, 2, 3, 4 b. 1, 2, 3 c. 1, 2 d. 1 ANS: D Until 1970, only the dental hygienist was allowed to perform intraoral functions in all states. Although laws vary ...

Solid Mechanics 2 Marks Question with Answers UNIT -1 1. Define stress. When an external force acts on a body, it undergoes deformation. At the same time the body resists deformation. The magnitude of the resisting force is numerically equal to the applied force. This internal resisting force per unit area is called stress. Stress = Force/Area 2. Define strain When a body is subjected to an external force, there is some change of dimension in the body. Numerically the strain ...

MATSE 259 Exam 1 PSU With Complete Solutions Elastic Modulus (e) measure of stiffness, or a material's resistance to elastic deformation ... slope of elastic portion of stress-strain curve Crystalline Materials small group of atoms that are repeated by translation to form 3-D arrangements Antisotropic properties that vary with direction. Ex: E(edge) isn't equal to E(diagonal) Polycrystal properties that may or may not vary with direction Isotropic the grains a...

MATSE 259 Exam 1 With Complete Solutions Hooke's Law σ = Eε σ: engineering stress ε: engineering strain E: modulus of elasticity Elastic Elongation and Strain v = -εx/εz = -εy/εz applied tensile stress, elastic elongation and accompanying strain Tensile Strength (MPa or psi) -Stress at max of stress-strain curve -Max stress that can be sustained by a structure in tension Toughness -Ability of material to absorb energy up to a fracture -Area under stress-st...

MATSE 259 Exam 1 PSU With Complete Solutions Elastic Modulus (e) measure of stiffness, or a material's resistance to elastic deformation ... slope of elastic portion of stress-strain curve Crystalline Materials small group of atoms that are repeated by translation to form 3-D arrangements Antisotropic properties that vary with direction. Ex: E(edge) isn't equal to E(diagonal) Polycrystal properties that may or may not vary with direction Isotropic the grains a...

CWB Module 12 When a metal is subjected to load, it will be resisted by internal forces within the metal. The intensity of these forces through a given plane is known as? Stress Select the three ways in which a load can act on a cross-sectional area in a body. A) Perpendicular B) Tension C) Angular D) Compression E) Helixial F) Shear B) Tension, D) Compression, F) Shear Brainpower Read More True or False "Strain is the extension divided by the original length" True...

MATSE 259 Exam 1 With Complete Solutions Hooke's Law σ = Eε σ: engineering stress ε: engineering strain E: modulus of elasticity Elastic Elongation and Strain v = -εx/εz = -εy/εz applied tensile stress, elastic elongation and accompanying strain Tensile Strength (MPa or psi) -Stress at max of stress-strain curve -Max stress that can be sustained by a structure in tension Toughness -Ability of material to absorb energy up to a fracture -Area under stress-st...

CWB | Mechanical Testing of Welds Exam Pre Test Questions With Answers 1. When a metal is subjected to load, it will be resisted by internal forces within the metal. The intensity of these forces through a given plane is known as ___________ - ANSWER Stress Exercise Questions - Section 2 2. Select the 3 ways in which a load can act on a cross-sectional area in a body a) perpendicular b) tension c) angular d) compression e) helixial f) shear - ANSWER b) tension d) compression...

138 TOP Machine Design - Mechanical Engineering Multiple choice Questions and Answers Latest Machine Design Questions and Answers pdf free download 1. The ultimate strength of steel in tension in comparison to shear is in the ratio of (a) 1 : l (b) 2:1 (c) 3 : 2 (d) 2 : 3 (e) 1 : 2 Ans: c 2. The permissible stress for carbon steel under static loading is generally taken as (a) kg/pm2 (b) kg/cm2 (c) kg/cm2 (d) 7500-10,000 kg/cm2 (e) 10,000-15,000 kg/cm2. Ans: c 3. The proper...

MATSE 259 Exam 1 With Complete Solutions Hooke's Law σ = Eε σ: engineering stress ε: engineering strain E: modulus of elasticity Elastic Elongation and Strain v = -εx/εz = -εy/εz applied tensile stress, elastic elongation and accompanying strain Tensile Strength (MPa or psi) -Stress at max of stress-strain curve -Max stress that can be sustained by a structure in tension Toughness -Ability of material to absorb energy up to a fracture -Area under stress-st...