Fracture Resistance of Aluminum Alloys

Kaufman, J. G.

doi:10.31399/asm.hb.v02b.a0006457

Cited by 10 publications

(10 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, only very weak cyclic hardening was apparent at the strain range tested (Figure 2B). The material's plane strain fracture toughness K Ic was 51.7 MPa √m in the L-T orientation used, which is in close agreement to toughness results for alloy 7475-T7351 reported by Kaufmann 29 and Bucci.…”

Section: Specimenssupporting

confidence: 88%

Subsurface fatigue crack tip strains in 7475‐T7351 aluminium alloy measured using stroboscopic neutron diffraction

Coules

Probert

Azuma

et al. 2023

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

Fatigue crack growth in thick‐section metals is typically controlled by an internal plane strain region where strong triaxial constraint of the crack tip occurs. However, the crack tip stress state in this region is challenging to measure. We have used neutron diffraction to study the plane strain section of fatigue crack tips in situ. A stroboscopic form of neutron diffraction using a moving frame‐of‐reference was developed to measure crack tip strains as a function of phase in the fatigue loading cycle without interrupting the cyclic load. Using point measurements of near‐tip strain in 7475‐T7351 aluminium alloy in conjunction with finite element analysis, we can estimate the extent of the crack tip plastic zone, verifying that it is small for this material and set of loading conditions.

show abstract

Section: Specimenssupporting

confidence: 88%

Subsurface fatigue crack tip strains in 7475‐T7351 aluminium alloy measured using stroboscopic neutron diffraction

Coules

Probert

Azuma

et al. 2023

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…Friction conditions at these contact areas play an important role in the deformation of PP blanks. Parameter Aluminum [13] PP [14] Heat capacity (J/kg K) 900 1800…”

Section: Finite Element Modelingmentioning

confidence: 99%

A numerical study on warm deep drawing of polypropylene

Reddy

Mallick

2023

Polymer Engineering & Sci

View full text Add to dashboard Cite

Warm deep drawing of polypropylene, a semi‐crystalline thermoplastic polymer, is studied using finite element analysis. In this process, a circular polypropylene blank is preheated to a temperature much below its melting temperature and deep drawn into the shape of a flat‐bottom cylindrical cup using a punch‐die combination, both initially at 25°C. The material model used for the analysis considers the effects of varying temperature and strain rate during the deep drawing process on the depth of draw. The effects of blank holder force, initial blank temperature, blank diameter, and die and punch corner radii on the depth of draw are determined. Thickness, temperature, and strain variations in the drawn cups, punch forces, and failure modes are also determined.

show abstract

“…091 and c = −0.452 [5] for cyclic stress-strain curve and strain Wöhler curve as an input of the local strain approach, respectively, and the fracture toughness G c = 0.165 MPa m [6] were chosen. The characteristic length ℓ is set to 1 mm, which is three times the minimum element size.…”

Section: Parametrisation and Simulation Of Lsp-treated Specimenmentioning

confidence: 99%

Simulation of fatigue crack growth in residual‐stress‐afflicted specimen with a phase‐field model

Seiler

Keller

Kashaev

et al. 2021

Proc Appl Math & Mech

View full text Add to dashboard Cite

Laser shock peening (LSP) is a promising technique to systematically introduce local compressive residual stresses in metal sheets, inhibiting fatigue cracks in these areas. We model fatigue crack growth in these specimen with the help of a phase‐field model for fatigue fracture [1]. First, we parametrise the model using untreated aluminium specimens. In a second step, we use the determined parameters to simulate residual‐stress‐afflicted specimens, qualitatively reproducing the crack inhibition due to LSP.

show abstract

Fracture Resistance of Aluminum Alloys

Cited by 10 publications

References 21 publications

Subsurface fatigue crack tip strains in 7475‐T7351 aluminium alloy measured using stroboscopic neutron diffraction

Subsurface fatigue crack tip strains in 7475‐T7351 aluminium alloy measured using stroboscopic neutron diffraction

A numerical study on warm deep drawing of polypropylene

Simulation of fatigue crack growth in residual‐stress‐afflicted specimen with a phase‐field model

Contact Info

Product

Resources

About