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RISA Theoretical Derivation of the Similarity of Dynamic Compaction Processes of Powder Media in Dies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multiple shock compactions of powder media within a die with a rigid punch are theoretically investigated. First, similarity of dynamic compaction processes for a powder medium of a simple type ...
An Analysis Method for the Dynamic Compaction Processes of Powder Media Within a Die
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method of analysis for the multishock compaction process of die-contained powder media with a plug at one end and an impacting punch at the other end is presented. In the method assumptions ...
Multiple Shock Compaction of Simple Type Powders by Punch Impact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recently, we have elucidated some mechanical behaviors of powders during the compaction. The elucidation involves the constitutive relations of a powder medium under the multishock compaction, the ...
Computed Dynamic Compaction of a Two-Layered Copper Powder Medium
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the paper presented a dynamic compaction of a two-layered powder medium is analyzed. A two-layered medium is used because it is the simplest form of layered medium available. The layers ...
Jumps Across an Outgoing Spherical Shock Wave Front
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The shock jump conditions have been used since Rankine published in 1870 and Hugoniot in 1889. However, these conditions, in which the geometrical effect is never included, may not be correctly ...
Experimental Verification of the Similarity of Dynamic Compaction Processes of a Copper Powder Medium in Dies of Elementary Shapes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The similarity of dynamic compaction processes was investigated theoretically and predicted in our previous report, where powder media in a die were assumed to be of a simple type, and the ...
Dynamic Equilibrium Constitutive Relations of Copper Powder Within Dies Subjected to Mutliple Shock Compactions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An approximate dynamic equilibrium pressure p -specific volume V relation exists for porous materials of a simple type undergoing mutliple shock compaction processes. A copper powder medium in ...
Nonunique Dynamic Equilibrium Constitutive Relation of Metal Powder Depending on its Microstructure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It was observed in an earlier work by Morimoto et al. [Inst. Phys. Conf. Ser. No. 70, Oxford 1984, p. 427] that the dynamic compact of an aluminium powder medium had greater flakiness and ...
Multishock Compactions of Powder Media Influenced by Elastic Waves in Punch and Plug
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The previous theoretical predictions of the compaction of a copper powder medium, based on the assumption that the punch and plug were both a rigid body, did not satisfactorily agree with the ...
Multishock Compactions of a Die-Contained Copper Powder Medium Analyzed by Improved Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present paper, the multishock compaction process of a die-contained copper powder medium supported by an elastic plug at one end and impacted by an elastic punch at the other end, is ...