A more comprehensive method for yield locus construction for metallic alloys and composites

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Conventional methods for constructing yield loci rely on the assumption that nonlinear strains are permanent strains, which is not always the case. A nickel-base alloy, SiC fiber-reinforced titanium, an aluminum alloy, and particle-reinforced aluminum have been observed to violate this assumption. We present a method for constructing yield loci using a proof strain criterion for the permanent strain that relies on cyclic, proportional, probes of the yield surface. Two criteria are implemented: one for stress reversal and one for yielding. The method is demonstrated by the construction of initial and subsequent yield loci in the axial-shear stress plane using thin-walled tubular specimens. Results are presented for 6061-T6 aluminum as well as for 6092/SiC/17.5p-T6, which is 6092 aluminum reinforced with 17.5 volume percent silicon carbide particulate. The centers of the initial yield loci for the composite are eccentric to the origin of the stress plane most likely because of the residual stresses induced during processing. Material hardening due to multiaxial stress states can be described by tracking evolution of the subsequent yield surfaces and here hardening of the particulate composite was primarily kinematic.

Original languageEnglish (US)
Pages (from-to)10-20
Number of pages11
JournalExperimental Mechanics
Volume44
Issue number1
DOIs
StatePublished - Jan 1 2004

Fingerprint

Composite materials
Aluminum
Hardening
Titanium alloys
Silicon carbide
Shear stress
Aluminum alloys
Residual stresses
Kinematics
Nickel
Fibers
Processing

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{2bca5049929e44fcb4a5a39bb045bd70,
title = "A more comprehensive method for yield locus construction for metallic alloys and composites",
abstract = "Conventional methods for constructing yield loci rely on the assumption that nonlinear strains are permanent strains, which is not always the case. A nickel-base alloy, SiC fiber-reinforced titanium, an aluminum alloy, and particle-reinforced aluminum have been observed to violate this assumption. We present a method for constructing yield loci using a proof strain criterion for the permanent strain that relies on cyclic, proportional, probes of the yield surface. Two criteria are implemented: one for stress reversal and one for yielding. The method is demonstrated by the construction of initial and subsequent yield loci in the axial-shear stress plane using thin-walled tubular specimens. Results are presented for 6061-T6 aluminum as well as for 6092/SiC/17.5p-T6, which is 6092 aluminum reinforced with 17.5 volume percent silicon carbide particulate. The centers of the initial yield loci for the composite are eccentric to the origin of the stress plane most likely because of the residual stresses induced during processing. Material hardening due to multiaxial stress states can be described by tracking evolution of the subsequent yield surfaces and here hardening of the particulate composite was primarily kinematic.",
author = "{Lissenden, III}, {Clifford Jesse} and X. Lei",
year = "2004",
month = "1",
day = "1",
doi = "10.1007/BF02427970",
language = "English (US)",
volume = "44",
pages = "10--20",
journal = "Experimental Mechanics",
issn = "0014-4851",
publisher = "Springer New York",
number = "1",

}

A more comprehensive method for yield locus construction for metallic alloys and composites. / Lissenden, III, Clifford Jesse; Lei, X.

In: Experimental Mechanics, Vol. 44, No. 1, 01.01.2004, p. 10-20.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A more comprehensive method for yield locus construction for metallic alloys and composites

AU - Lissenden, III, Clifford Jesse

AU - Lei, X.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - Conventional methods for constructing yield loci rely on the assumption that nonlinear strains are permanent strains, which is not always the case. A nickel-base alloy, SiC fiber-reinforced titanium, an aluminum alloy, and particle-reinforced aluminum have been observed to violate this assumption. We present a method for constructing yield loci using a proof strain criterion for the permanent strain that relies on cyclic, proportional, probes of the yield surface. Two criteria are implemented: one for stress reversal and one for yielding. The method is demonstrated by the construction of initial and subsequent yield loci in the axial-shear stress plane using thin-walled tubular specimens. Results are presented for 6061-T6 aluminum as well as for 6092/SiC/17.5p-T6, which is 6092 aluminum reinforced with 17.5 volume percent silicon carbide particulate. The centers of the initial yield loci for the composite are eccentric to the origin of the stress plane most likely because of the residual stresses induced during processing. Material hardening due to multiaxial stress states can be described by tracking evolution of the subsequent yield surfaces and here hardening of the particulate composite was primarily kinematic.

AB - Conventional methods for constructing yield loci rely on the assumption that nonlinear strains are permanent strains, which is not always the case. A nickel-base alloy, SiC fiber-reinforced titanium, an aluminum alloy, and particle-reinforced aluminum have been observed to violate this assumption. We present a method for constructing yield loci using a proof strain criterion for the permanent strain that relies on cyclic, proportional, probes of the yield surface. Two criteria are implemented: one for stress reversal and one for yielding. The method is demonstrated by the construction of initial and subsequent yield loci in the axial-shear stress plane using thin-walled tubular specimens. Results are presented for 6061-T6 aluminum as well as for 6092/SiC/17.5p-T6, which is 6092 aluminum reinforced with 17.5 volume percent silicon carbide particulate. The centers of the initial yield loci for the composite are eccentric to the origin of the stress plane most likely because of the residual stresses induced during processing. Material hardening due to multiaxial stress states can be described by tracking evolution of the subsequent yield surfaces and here hardening of the particulate composite was primarily kinematic.

UR - http://www.scopus.com/inward/record.url?scp=1342309780&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1342309780&partnerID=8YFLogxK

U2 - 10.1007/BF02427970

DO - 10.1007/BF02427970

M3 - Article

VL - 44

SP - 10

EP - 20

JO - Experimental Mechanics

JF - Experimental Mechanics

SN - 0014-4851

IS - 1

ER -