Matches in SemOpenAlex for { <https://semopenalex.org/work/W1978548612> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W1978548612 endingPage "251" @default.
- W1978548612 startingPage "227" @default.
- W1978548612 abstract "Precursor decay in plate impact experiments on single crystals is re-examined from the viewpoint of the elastodynamics of moving dislocations. Superposition of solutions for many dislocations set in motion by an incident plane wave is used to relate the decay of the wave amplitude at the front of the plane wave to the density and velocity of dislocations at the wavefront. The resulting precursor decay relation is the same as the one derived from an elastic/visco-plastic model of the material, except for a small correction due to differences between the effects of forward and backward propagating dislocations. Motivated by this added support for the validity of the precursor decay equation, the values used for the quantities in this equation are re-examined. Recent experimental results and the elastodynamics analysis are interpreted as indicating that the commonly-used values of dislocation velocity are probably satisfactory, but that the values used for dislocation density are several orders of magnitude too small near the lapped surfaces of the crystal. These large dislocation densities are identified as the probable dominant cause of the lower-than-predicted precursor amplitudes that are recorded in experiments. More accurate experimental data and inclusion of the non-linear elasticity effects are essential in determining whether or not the observed precursor decay in the bulk of the specimen can be explained by the motion of dislocations present initially. Calculations of energy radiated from screw and edge dislocations that start from rest and move thereafter at constant velocity confirm that dislocation drag forces due to continuum elasticity effects are small for dislocation velocities less than, say, 80% of the elastic shear wave speed. At supersonic speeds the continuum drag effects become so large that sustained supersonic motion of dislocations appears unlikely." @default.
- W1978548612 created "2016-06-24" @default.
- W1978548612 creator A5011140901 @default.
- W1978548612 creator A5088675045 @default.
- W1978548612 date "1981-06-01" @default.
- W1978548612 modified "2023-09-30" @default.
- W1978548612 title "Elastic precursor decay and radiation from nonuniformly moving dislocations" @default.
- W1978548612 cites W1981617902 @default.
- W1978548612 cites W1986465501 @default.
- W1978548612 cites W1988836134 @default.
- W1978548612 cites W1999421722 @default.
- W1978548612 cites W2008717993 @default.
- W1978548612 cites W2032308705 @default.
- W1978548612 cites W2050371302 @default.
- W1978548612 cites W2058043530 @default.
- W1978548612 cites W2061032655 @default.
- W1978548612 cites W2061323438 @default.
- W1978548612 cites W2067941548 @default.
- W1978548612 cites W2068291767 @default.
- W1978548612 cites W2071188437 @default.
- W1978548612 cites W2071616151 @default.
- W1978548612 cites W2079657638 @default.
- W1978548612 cites W2084103201 @default.
- W1978548612 cites W2085849166 @default.
- W1978548612 cites W2098857829 @default.
- W1978548612 cites W2161049670 @default.
- W1978548612 cites W4245794111 @default.
- W1978548612 cites W2063799621 @default.
- W1978548612 doi "https://doi.org/10.1016/0022-5096(81)90028-4" @default.
- W1978548612 hasPublicationYear "1981" @default.
- W1978548612 type Work @default.
- W1978548612 sameAs 1978548612 @default.
- W1978548612 citedByCount "64" @default.
- W1978548612 countsByYear W19785486122012 @default.
- W1978548612 countsByYear W19785486122013 @default.
- W1978548612 countsByYear W19785486122014 @default.
- W1978548612 countsByYear W19785486122015 @default.
- W1978548612 countsByYear W19785486122016 @default.
- W1978548612 countsByYear W19785486122017 @default.
- W1978548612 countsByYear W19785486122018 @default.
- W1978548612 countsByYear W19785486122019 @default.
- W1978548612 countsByYear W19785486122020 @default.
- W1978548612 countsByYear W19785486122021 @default.
- W1978548612 countsByYear W19785486122022 @default.
- W1978548612 countsByYear W19785486122023 @default.
- W1978548612 crossrefType "journal-article" @default.
- W1978548612 hasAuthorship W1978548612A5011140901 @default.
- W1978548612 hasAuthorship W1978548612A5088675045 @default.
- W1978548612 hasConcept C120665830 @default.
- W1978548612 hasConcept C121332964 @default.
- W1978548612 hasConcept C159122135 @default.
- W1978548612 hasConcept C180205008 @default.
- W1978548612 hasConcept C192562407 @default.
- W1978548612 hasConcept C26873012 @default.
- W1978548612 hasConcept C27753989 @default.
- W1978548612 hasConcept C40308292 @default.
- W1978548612 hasConcept C57879066 @default.
- W1978548612 hasConcept C62520636 @default.
- W1978548612 hasConcept C74650414 @default.
- W1978548612 hasConcept C81764414 @default.
- W1978548612 hasConceptScore W1978548612C120665830 @default.
- W1978548612 hasConceptScore W1978548612C121332964 @default.
- W1978548612 hasConceptScore W1978548612C159122135 @default.
- W1978548612 hasConceptScore W1978548612C180205008 @default.
- W1978548612 hasConceptScore W1978548612C192562407 @default.
- W1978548612 hasConceptScore W1978548612C26873012 @default.
- W1978548612 hasConceptScore W1978548612C27753989 @default.
- W1978548612 hasConceptScore W1978548612C40308292 @default.
- W1978548612 hasConceptScore W1978548612C57879066 @default.
- W1978548612 hasConceptScore W1978548612C62520636 @default.
- W1978548612 hasConceptScore W1978548612C74650414 @default.
- W1978548612 hasConceptScore W1978548612C81764414 @default.
- W1978548612 hasIssue "3" @default.
- W1978548612 hasLocation W19785486121 @default.
- W1978548612 hasOpenAccess W1978548612 @default.
- W1978548612 hasPrimaryLocation W19785486121 @default.
- W1978548612 hasRelatedWork W1639372211 @default.
- W1978548612 hasRelatedWork W1964370136 @default.
- W1978548612 hasRelatedWork W2026000083 @default.
- W1978548612 hasRelatedWork W2056748475 @default.
- W1978548612 hasRelatedWork W2066993153 @default.
- W1978548612 hasRelatedWork W2073165044 @default.
- W1978548612 hasRelatedWork W2076665077 @default.
- W1978548612 hasRelatedWork W2329755085 @default.
- W1978548612 hasRelatedWork W4246660277 @default.
- W1978548612 hasRelatedWork W862132184 @default.
- W1978548612 hasVolume "29" @default.
- W1978548612 isParatext "false" @default.
- W1978548612 isRetracted "false" @default.
- W1978548612 magId "1978548612" @default.
- W1978548612 workType "article" @default.