A Modified Pressure-Impulse Blast Damage Model

Abstract The article presents an approach to modeling the internal membrane pressure wave inside a sealed structure. During an explosion near a vehicle when a pressure wave reaches a hull, a pressure wave inside arises due to the hull’s bottom and the deformation of sides. They act like the piston - membrane. This membrane transfers the pressure impulse into the vehicle’s interior. A pressure increase causes the damage of internal organs or even death of occupants. In case of an armor penetration the pressure increase may be even larger. One of basic methods to protect a crew is to open hatches. However, such a method cannot be used in a contaminated area.

Why is it necessary to use a damage model to simulate the mechanical behavior of concrete under drying and leaching?

European Journal of Environmental and Civil engineering ◽

10.3166/ejece.14.923-935 ◽

2010 ◽

Vol 14 (6-7) ◽

pp. 923-935

Author(s):

Thomas Rougelot ◽

Cheng Peng ◽

Nicolas Burlion ◽

Dominique Bernard

Keyword(s):

Mechanical Behavior ◽

Damage Model

Rubber or plastics hoses and hose assemblies. Hydraulic-pressure impulse test without flexing

10.3403/01266597u ◽

2015 ◽

Keyword(s):

Hydraulic Pressure ◽

Pressure Impulse

Aerospace series. Pressure impulse testing of hydraulic system components

10.3403/30160852 ◽

2007 ◽

Keyword(s):

Hydraulic System ◽

Pressure Impulse ◽

System Components

Cumulative Damage Model for Advanced Composite Materials.

10.21236/ada144840 ◽

1984 ◽

Cited By ~ 1

Author(s):

P. C. Chou ◽

A. S. D. Wang ◽

C. S. Lei ◽

R. B. Bucinell

Keyword(s):

Composite Materials ◽

Damage Model ◽

Cumulative Damage ◽

Advanced Composite ◽

Advanced Composite Materials ◽

Cumulative Damage Model

A Novel Damage Model for Strata Layers and Coal Mass

Energies ◽

10.3390/en13081928 ◽

2020 ◽

Vol 13 (8) ◽

pp. 1928 ◽

Cited By ~ 2

Author(s):

Faham Tahmasebinia ◽

Chengguo Zhang ◽

Ismet Canbulat ◽

Samad Sepasgozar ◽

Serkan Saydam

Keyword(s):

Constitutive Model ◽

Strain Energy ◽

Damage Model ◽

Rock Joint ◽

Coal Mass ◽

Stored Energy ◽

Rock Interaction ◽

Geological Factors ◽

Coal Rock ◽

Joint Quality

Coal burst occurrences are affected by a range of mining and geological factors. Excessive slipping between the strata layers may release a considerable amount of strain energy, which can be destructive. A competent strata is also more vulnerable to riveting a large amount of strain energy. If the stored energy in the rigid roof reaches a certain level, it will be released suddenly which can create a serious dynamic reaction leading to coal burst incidents. In this paper, a new damage model based on the modified thermomechanical continuum constitutive model in coal mass and the contact layers between the rock and coal mass is proposed. The original continuum constitutive model was initially developed for the cemented granular materials. The application of the modified continuum constitutive model is the key aspect to understand the momentum energy between the coal–rock interactions. The transformed energy between the coal mass and different strata layers will be analytically demonstrated as a function of the rock/joint quality interaction conditions. The failure and post failure in the coal mass and coal–rock joint interaction will be classified by the coal mass crushing, coal–rock interaction damage and fragment reorganisation. The outcomes of this paper will help to forecast the possibility of the coal burst occurrence based on the interaction between the coal mass and the strata layers in a coal mine.

Cavitation-induced damage model of soft materials in exposure to high-intensity focused ultrasound

Acta Mechanica Sinica ◽

10.1007/s10409-020-01000-y ◽

2020 ◽

Vol 36 (5) ◽

pp. 1058-1064

Author(s):

Qinyi Huang ◽

Zheng Zhong

Keyword(s):

High Intensity ◽

Focused Ultrasound ◽

Damage Model ◽

Soft Materials ◽

High Intensity Focused Ultrasound