Tensile Behavior of Metallic Materials

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What does Modulus of Resilience (MoR) indicate about a material?

Ability to absorb energy up to fracture

Elastic strength under dynamic loading (correct)

Maximum energy/work required to stretch a unit volume up to elastic limit

Tensile strength of the material

How is toughness defined in relation to the tensile behavior of materials?

Ability of material to stretch without breaking

Maximum energy needed to cause fracture

Work required to stretch the material up to fracture (correct)

Area under P-∆ curve up to elastic limit

What does resilience represent in terms of tensile behavior of metallic materials?

Maximum work needed to cause fracture

Tensile strength of the material

Maximum work required to stretch the material up to elastic limit (correct)

Area under stress-strain curve in the plastic zone

What does the Tensile Modulus of Resilience (MoR) indicate about a material?

Maximum energy/work required to stretch a unit volume up to elastic limit Signup and view all the answers

In terms of tensile behavior, what does the Modulus of Resilience (MoR) represent?

Elastic strength under dynamic loading Signup and view all the answers

How is resilience related to the stress-strain curve in metallic materials?

Maximum work/energy needed for stretching up to elastic limit Signup and view all the answers

What is the primary behavior being studied in the tension test for metallic materials?

The tensile behavior under axial loading Signup and view all the answers

Which of the following statements about steel tensile behavior is true?

Steel products are primarily designed to perform under tensile loads Signup and view all the answers

What is a key advantage of the tension test for quality control of construction steel products?

It is easy to perform and has low cost Signup and view all the answers

Which of the following properties cannot be determined from the load-elongation (P-ΔL) diagram obtained in a tension test?

Poisson's ratio Signup and view all the answers

What is the primary reason for using the tension test as a quality control measure for construction steel products?

It can determine most mechanical properties through a simple and cost-effective method Signup and view all the answers

What type of loading pattern is applied during a tension test?

Axial tensile loading Signup and view all the answers

What is the modulus of elasticity that represents the slope of the stress-strain curve at the origin?

Initial tangent modulus Signup and view all the answers

Which type of modulus of elasticity is calculated using the slope of a secant drawn from the origin to a specified point on the stress-strain curve?

Secant modulus Signup and view all the answers

What does resilience measure in a material?

Its ability to return to its original shape after deformation Signup and view all the answers

Which modulus of elasticity represents the slope of the stress-strain curve at any specified stress or strain?

Tangent modulus D Signup and view all the answers

In steel, which modulus of elasticity is calculated by drawing a chord between any two specified points on the stress-strain curve below the elastic limit?

Chord modulus Signup and view all the answers

What distinguishes metallic materials like cast iron from others in terms of stress-strain relationship?

They do not exhibit a linear stress-strain relationship Signup and view all the answers

What is the primary purpose of a tension test?

To determine the elongation properties of a material Signup and view all the answers

Which of the following devices is commonly used to measure elongation during a tension test?

Extensometer Signup and view all the answers

What is the gauge length in a tension test specimen?

The length over which elongation is measured Signup and view all the answers

According to the European Standard for rebars (ESS), how is the gauge length determined?

Lo = 5d Signup and view all the answers

How are gauge marks typically applied to the tension test specimen?

Stamped lightly with a punch or drawn with ink Signup and view all the answers

Which of the following standards specifies a gauge length of $4d$ for rounded tension test specimens?

ASTM (American Society for Testing and Materials) Signup and view all the answers

What is the definition of elastic strength according to the text?

The maximum stress which a material can sustain without any permanent deformation. Signup and view all the answers

How is the elastic strength of a material determined according to the text?

It is difficult to determine and requires several tests, with accuracy depending on the number of tests. Signup and view all the answers

What is the formula for yield strength given in the text?

$P_{y} = F_{y} / A_o$ Signup and view all the answers

What are the two different magnitudes for yield stress?

Upper yield strength and lower yield strength Signup and view all the answers

What is the definition of upper yield strength according to the text?

The stress at the beginning of yielding. Signup and view all the answers

Which yield strength does the text state that most specifications consider as the yield strength?

The upper yield strength Signup and view all the answers

Tensile Behavior of Metallic Materials - CES 152 Spring 2024

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