Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Apparatus for measuring strength in biaxial compression

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/5.0059227· OSTI ID:1869606
 [1];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
+ Show Author Affiliations
We report most measurements of compressive strength of ductile materials have involved Hopkinson–Kolsky bars or Taylor anvils placing samples in uniaxial compression. In these geometries, strain is limited by the tendency of the sample to petal, in analogy to necking in uniaxial tension. Estimation of strength for any other form of the stress tensor requires assuming a shape of the yield surface; because data exist only for uniaxial compression, these assumptions are untested. In an imploding spherical shell, compression is biaxial, the plastic strain may not be small, and the material behavior may be nonlinear as a result of work hardening and heating by plastic work. We outline a method of measuring the strengths of materials in biaxial compression, both quasistatically and dynamically, using the compression of thin spherical shells. We suggest surrounding the shell with an annulus filled with a mixture of H2 and Cl2 gases whose homogeneous ignition is initiated by a flash of blue and near-ultraviolet light. Less promising approaches are described in Appendixes A–C .
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
Grant/Contract Number:
89233218CNA000001; AC52-07NA27344
OSTI ID:
1869606
Alternate ID(s):
OSTI ID: 1970680
Report Number(s):
LA-UR-21-24726
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 4 Vol. 93; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (14)

Detonation characteristics of hydrogen-oxygen mixtures journal March 1960
Piezoelectric properties and conductivity of Pb(Zr,Ti)O3 with SrO–WO3 additive journal December 2009
Tensile strength and ductility of indium journal July 1988
Length scale and time scale effects on the plastic flow of fcc metals journal December 2001
Sub-Microsecond Yield and Tensile Strengths of Metals and Alloys at Elevated Temperatures
  • Razorenov, S. V.
  • SHOCK COMPRESSION OF CONDENSED MATTER - 2003: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings https://doi.org/10.1063/1.1780284
conference January 2004
A constitutive model for metals applicable at high‐strain rate journal March 1980
A constitutive model for strain rates from 10 − 4 to 10 6 s − 1 journal February 1989
III. Dislocation densities in some annealed and cold-worked metals from measurements on the X-ray debye-scherrer spectrum journal January 1956
An Investigation of the Mechanical Properties of Materials at very High Rates of Loading journal November 1949
The use of flat-ended projectiles for determining dynamic yield stress I. Theoretical considerations journal September 1948
A Method of Measuring the Pressure Produced in the Detonation of High Explosives or by the Impact of Bullets journal January 1914
Variation with Temperature of the Continuous Absorption Spectrum of Diatomic Molecules: Part I. Experimental, The Absorption Spectrum of Chlorine journal August 1933
Variation with Temperature of the Continuous Absorption Spectrum of Diatomic Molecules: Part II. Theoretical journal August 1933
Continuum Theory of Ductile Rupture by Void Nucleation and Growth: Part I—Yield Criteria and Flow Rules for Porous Ductile Media journal January 1977

Similar Records

Biaxial strength of HY 80 steel
Journal Article · Sun Mar 31 23:00:00 EST 1985 · J. Eng. Mater. Technol.; (United States) · OSTI ID:6218183
High Strain Rate Compression Testing of Ceramics and Ceramic Composites.
Conference · Fri Dec 31 23:00:00 EST 2004 · OSTI ID:977941

Related Subjects

47 OTHER INSTRUMENTATION
biaxial compression
strength