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Experimental Study on Rate-Dependent Constitutive Relations with Damage for Plastic-Bonded Explosives
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Dan LI1, 2, Feng ZHAO2, Hua FU2, Ke-Wu LI2
Chinese Journal of High Pressure Physics | 2013, 27(4) : 625 - 632
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Chinese Journal of High Pressure Physics | 2013, 27(4): 625-632
Experimental Study on Rate-Dependent Constitutive Relations with Damage for Plastic-Bonded Explosives
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Dan LI1, 2, Feng ZHAO2, Hua FU2, Ke-Wu LI2
Affiliations
  • 1.College of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China
  • 2.National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
Published: 2013-08-15
Outline
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Cyclic loading and unloading experiments and the uniaxial compressive experiment of plastic-bonded explosives (PBX) under different strain rate were performed by a universal material testing machine. The stress-strain curves of plastic-bonded explosives were obtained in different operating conditions. Based on the idea of combining phenomenological analysis and micro-statistical analysis, a damage evolution equation with damage internal variable and rate-dependent constitutive relations with damage for plastic-bonded explosives were given. The model was checked with the experimental data, and the relevant parameters of rate-dependent constitutive relations with damage were obtained. Experimental results indicate that the constitutive equation can describe mechanical properties of the PBX explosives at the linear elastic stage, strengthen stage, and strain softening stage. The constitutive relation is simple and requires less parameters to be determined. The damage variable defined by micro-crack density can be easily determined by mechanical testing.

PBX explosive  /  micro-crack density  /  rate type  /  damage  /  constitutive relation
李丹, 赵锋, 傅华, 李克武. PBX炸药率型损伤本构关系的实验研究. 高压物理学报, 2013 , 27 (4) : 625 -632 .
Dan LI, Feng ZHAO, Hua FU, Ke-Wu LI. Experimental Study on Rate-Dependent Constitutive Relations with Damage for Plastic-Bonded Explosives[J]. Chinese Journal of High Pressure Physics, 2013 , 27 (4) : 625 -632 .
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Article Info
  • Receive Date：2013-05-16
  • Online Date：2026-11-05
  • Published：2013-08-15
Article Data
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History
  • Received：2013-05-16
  • Revised：2013-07-12
Funding
Affiliations
    1.College of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China
    2.National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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