Andere Kunden interessierten sich auch für
![Prediction of Long-Term Strength of Thermoplastic Composites Using Time-Temperature Superposition]( "Prediction of Long-Term Strength of Thermoplastic Composites Using Time-Temperature Superposition")
Prediction of Long-Term Strength of Thermoplastic Composites Using Time-Temperature Superposition63,99 €![The Laws of Athletics: Showing How to Preserve and Improve Health, Strength and Beauty, and to Correct Personal Defects Caused by Want of Phy]( "The Laws of Athletics: Showing How to Preserve and Improve Health, Strength and Beauty, and to Correct Personal Defects Caused by Want of Phy")
The Laws of Athletics: Showing How to Preserve and Improve Health, Strength and Beauty, and to Correct Personal Defects Caused by Want of Phy20,99 €![CMOS VLSI Layout and Verification of a SIMD Computer]( "CMOS VLSI Layout and Verification of a SIMD Computer")
CMOS VLSI Layout and Verification of a SIMD Computer63,99 €![Viscoplastic Model Development to Account for Strength Differential: Application to Aged Inconel 718 at Elevated Temperature]( "Viscoplastic Model Development to Account for Strength Differential: Application to Aged Inconel 718 at Elevated Temperature")
Viscoplastic Model Development to Account for Strength Differential: Application to Aged Inconel 718 at Elevated Temperature63,99 €![Strain Rate Dependent Deformation and Strength Modeling of a Polymer Matrix Composite Utilizing a Micromechanics Approach]( "Strain Rate Dependent Deformation and Strength Modeling of a Polymer Matrix Composite Utilizing a Micromechanics Approach")
Strain Rate Dependent Deformation and Strength Modeling of a Polymer Matrix Composite Utilizing a Micromechanics Approach63,99 €![An Acoustic Charge Transport Imager for High Definition Television Applications: Reliability Modeling and Parametric Yield Prediction of GaAs Multiple]( "An Acoustic Charge Transport Imager for High Definition Television Applications: Reliability Modeling and Parametric Yield Prediction of GaAs Multiple")
An Acoustic Charge Transport Imager for High Definition Television Applications: Reliability Modeling and Parametric Yield Prediction of GaAs Multiple60,99 €![Experimental Study of Boundary Layer Behavior in a Simulated Low Pressure Turbine]( "Experimental Study of Boundary Layer Behavior in a Simulated Low Pressure Turbine")
Experimental Study of Boundary Layer Behavior in a Simulated Low Pressure Turbine63,99 €
Defects that develop in welds during the fabrication process are frequently manifested as embedded flaws from lack of fusion or lack of penetration. Fracture analyses of welded structures must be able to assess the effect of such defects on the structural integrity of weldments; however, the transferability of R-curves measured in laboratory specimens to defective structural welds has not been fully examined. In the current study, the fracture behavior of an overmatched butt weld containing a simulated buried, lack-of-penetration defect is studied. A specimen designed to simulate pressure vessel butt welds is considered; namely, a center crack panel specimen, of 1.25 inch by 1.25 inch cross section, loaded in tension. The stress-relieved double-V weld has a yield strength 50% higher than that of the plate material, and displays upper shelf fracture behavior at room temperature. Specimens are precracked, loaded monotonically while load-CMOD measurements are made, then stopped and heat tinted to mark the extent of ductile crack growth. These measurements are compared to predictions made using finite element analysis of the specimens using the fracture mechanics code Warp3D, which models void growth using the Gurson-Tvergaard dilitant plasticity formulation within fixed sized computational cells ahead of the crack front. Calibrating data for the finite element analyses, namely cell size and initial material porosities are obtained by matching computational predictions to experimental results from tests of welded compact tension specimens. The R-curves measured in compact tension specimens are compared to those obtained from multi-specimen weld tests, and conclusions as to the transferability of R-curves is discussed.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.