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Keywords: relaxation
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Journal Articles
Article Type: Research Papers
J. Eng. Mater. Technol. April 2012, 134(2): 021010.
Published Online: March 27, 2012
... and the loading direction was studied. The residual stresses were obtained using the x-ray diffraction technique. It was shown that the stability and relaxation of the residual stresses depend both on the amount and the direction of the loading stresses. Finite element modeling (FEM) was used to rationalize...
Journal Articles
Article Type: Research Papers
J. Eng. Mater. Technol. July 2010, 132(3): 031011.
Published Online: June 18, 2010
... to investigate the subsequent cyclic relaxation of compressive residual stresses in shot peened lath martensitic gear steel in the high cycle fatigue (HCF) regime. A strategy is identified to model both shot peening and cyclic loading processes for polycrystalline ensembles. The relaxation of residual stress...
Journal Articles
Article Type: Research Papers
J. Eng. Mater. Technol. January 2010, 132(1): 011018.
Published Online: December 9, 2009
... in constrained configuration space are just creep or relaxation processes of materials. The Hamilton principle can be considered as a fundamental principle of rheology. Intrinsic inequality 15 can be rewritten as 36 ∂ ψ ( σ , ϑ , ξ ) ∂ ξ ⋅ ξ ̇ ≥ 0 Therefore, the specific...
Journal Articles
Article Type: Research Papers
J. Eng. Mater. Technol. October 2006, 128(4): 572–578.
Published Online: May 11, 2006
... behavior of HDPE is modeled. For a complete viscoelastic and viscoplastic behavior, the relaxation and creep behaviors of HDPE are simulated as well in addition to stress and strain rate dependency. The influences of the strain (stress) levels where the relaxation (creep) experiments are performed...
Journal Articles
Article Type: Technical Papers
J. Eng. Mater. Technol. January 2007, 129(1): 48–54.
Published Online: May 2, 2006
... at temperature, most bolts lost 100% of their initial prestress. Nonlinear constitutive equations utilizing parameters obtained from uniaxial creep and relaxation tests were used in a simple one-dimensional model to predict the bolt load loss. The model cannot predict the detailed response and overpredicts...
Journal Articles
Article Type: Technical Papers
J. Eng. Mater. Technol. April 2002, 124(2): 103–111.
Published Online: March 26, 2002
... results on Avery Island Salt taken from Senseny et al. 14 (compression positive) Relaxation Constant strain rate (CSR) Creep Initial stress difference(MPa) Strain rate s − 1 Stress difference (MPa) Stage 1 Stage 2 Stage 1 Stage 2 Stage 3 σ...