Search Results - "KRAWITZ, A. D"

Effect of particle size on thermal residual stress in WC–Co composites by Coats, D.L, Krawitz, A.D

“…Thermal residual stresses (TRS) were studied in a series of tungsten carbide (WC)–cobalt (Co) composites using neutron powder diffraction. Samples with 10, 20,…”
Get full text

Effects of WC size and amount on the thermal residual stress in WC–Ni composites by Seol, K., Krawitz, A.D., Richardson, J.W., Weisbrook, C.M.

“…Effects of WC particle size and volume fraction on the magnitude and distribution of thermal residual stresses (TRS) in WC–Ni cemented carbide composites were…”
Get full text

In-Situ response of WC-Ni composites under compressive load by PAGGETT, J. W, KRAWITZ, A. D, DRAKE, E. F, BOURKE, M. A. M, CLAUSEN, B, BROWN, D. W

“…The in-situ strain response of WC-Ni cemented carbides (5, 10, and 20 wt pct Ni) to uniaxial compressive load was measured using neutron diffraction. Strain…”
Get full text

The role of residual stress in the tension and compression response of WC–Ni by Krawitz, A.D., Drake, E.F., Clausen, B.

“…The interaction of uniaxial applied stress with the thermal residual stress state in a WC–10 wt.% Ni cemented carbide composite was studied. A previously…”
Get full text

Residual stress in WC-Co measured by neutron diffraction by Mari, D., Krawitz, A.D., Richardson, J.W., Benoit, W.

“…Large thermal residual microstresses (TRS) can develop in WC-Co composites owing to the difference of the coefficients of thermal expansion (CTE) of the…”
Get full text

Residual stress and stress gradients in polycrystalline diamond compacts by Paggett, J.W, Drake, E.F, Krawitz, A.D, Winholtz, R.A, Griffin, N.D

“…Thermal residual macrostresses and their gradients were studied in a series of polycrystalline diamond compacts (PDC) using neutron diffraction. The specimens…”
Get full text

Thermal residual stress distribution in WC-Ni composites by Weisbrook, C.M., Krawitz, A.D.

“…The thermal residual stress distributions in a series of WC-Ni composites with WC volume fractions of 0.11, 0.21, 0.41, and 0.60 were measured using neutron…”
Get full text

In situ loading response of WC–Ni: Origins of toughness by Paggett, J.W., Krawitz, A.D., Drake, E.F., Bourke, M.A.M., Livescu, V., Claussen, B., Brown, D.W.

“…The strain response of WC and Ni in WC–Ni cemented carbide composites (5, 10 and 20 wt.% Ni) was studied under uniaxial compressive load to −2000 MPa using…”
Get full text

Finite element modeling of the WC–10wt.% Co thermal stresses: Build-up and phase specific strain response during cyclic loading by Mari, D., Campitelli, E.N., Drake, E.F., Krawitz, A.D.

“…Several finite element models of the morphology of WC–10wt.% Co were employed to reproduce the build-up of thermal residual stresses as well as the phase…”
Get full text

The relaxation of residual stresses with postweld heat treatment in a high-performance weld measured with neutron diffraction by WINHOLTZ, R. A, KRAWITZ, A. D

“…The residual stresses in a cylindrical weldment of HP-9-4-30 steel were measured with neutron diffraction in the as-welded (AW) state and after postweld heat…”
Get full text

Phase response of WC–Ni to cyclic compressive loading and its relation to toughness by Krawitz, A.D., Venter, A.M., Drake, E.F., Luyckx, S.B., Clausen, B.

“…The interaction of uniaxial compressive load and thermal residual stress was measured in a WC–10 wt.% (16 vol.%) Ni cemented carbide composite using neutron…”
Get full text

Use of finite element modeling to interpret diffraction peak broadening from elastic strain distributions by Weisbrook, C.M., Gopalaratnam, V.S., Krawitz, A.D.

“…An approach employing the finite element (FE) method to interpret diffraction peak broadening due to elastic strain distributions is presented that provides a…”
Get full text

Relation of elastic strain distributions determined by diffraction to corresponding stress distributions by Krawitz, A.D., Winholtz, R.A., Weisbrook, C.M.

“…The problem of converting elastic strain distributions determined by diffraction measurements to stress distributions is discussed. The relation of mean…”
Get full text

The effect of assuming the principal directions in neutron diffraction measurement of stress tensors by Winholtz, R.A., Krawitz, A.D.

“…In general, the components of stress in any three perpendicular directions can be determined by measuring the strains in those three directions. There is,…”
Get full text

Implications of equilibrium on principal macrostresses measured by neutron diffraction by Winholtz, R.A., Krawitz, A.D.

“…The application of the elastic equilibrium condition σ ij,j =0 to stress measurements by neutron diffraction is discussed. In particular, implications of the…”
Get full text

Measurement and modeling of room temperature co-deformation in WC–10 wt.% Co by Livescu, V., Clausen, B., Paggett, J.W., Krawitz, A.D., Drake, E.F., Bourke, M.A.M.

“…In situ neutron diffraction measurements were performed on a tungsten carbide (WC)–10 wt.% cobalt (Co) cemented carbide composite subjected to compressive…”
Get full text

The structure of boron in boron fibres by Bhardwaj, J., Krawitz, A. D.

“…The structure of noncrystalline, chemically vapour-deposited boron fibres was investigated by computer modelling the experimentally obtained X-ray diffraction…”
Get full text

Finite element modeling of the WC–10 wt.% Co thermal stresses: Build-up and phase specific strain response during cyclic loading by Mari, D., Campitelli, E.N., Drake, E.F., Krawitz, A.D.

Get full text

Residual stresses in polycrystalline diamond compacts by Krawitz, A.D., Andrew Winholtz, R., Drake, E.F., Griffin, N.D.

“…The thermal residual macrostresses in a series of polycrystalline diamond compacts were studied using neutron diffraction. Measurements were made of (1) the…”
Get full text

Measurement and modeling of room temperature co-deformation in WC–10wt.% Co by Livescu, V., Clausen, B., Paggett, J.W., Krawitz, A.D., Drake, E.F., Bourke, M.A.M.

Get full text