Abstract
The vibration isolation and energy absorption capability of high porosity metallic foams with closed cells for large mass protection under low velocity impact is theoretically studied. To explore the underlying physical mechanisms of shock attenuation, a double degree of freedom (DDF) spring-damper-foam collision model is developed. The effects of key system parameters (such as spring stiffness, damping ratio, mass ratio, initial velocity and foam thickness) on optimal foam mass and minimum acceleration peak are discussed.
Keywords: Impact attenuation; vibration isolation; metallic foam; collision model; energy absorption; double degree freedom
PACS®(2010): 46.40.−f
Received: 2011-9-1
Accepted: 2011-11-1
Published Online: 2012-2-11
Published in Print: 2012-2-1
©2012 by De Gruyter
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Articles in the same Issue
- Preface
- Multi-Thickness Target Plate Impact Experimental Approach to Failure Waves in Soda-lime Glass and Its Numerical Simulation
- Orientation-dependent Constitutive Model with Nonlinear Elasticity for Shocked β-HMX Single Crystal
- Numerical Simulation of a Shock Tube for Bio-dynamics Study
- Explosive-driven Shock Wave Demagnetization of Nd2Fe14B Hard Ferromagnets
- Large Mass Protection with Close-celled Metallic Foams Under Low Velocity Impact: Spring-damper-foam Collision Model
- Performance Analysis and Optimization of a Dual Warhead System
- Establishment of a Dynamic Mohr–Coulomb Failure Criterion for Rocks
- Nonlinear Damage and Failure Behavior of Brittle Rock Subjected to Impact Loading
- Experiments and Modeling of Failure and Fragmentation of Alumina Cylinders under Uniaxial Compression
- Radiation Characteristics of a Reflector Antenna Under Shock Wave Loading
- Experimental and Numerical Study on the Dynamic Buckling of Ping-pong Balls under Impact Loading
- Dynamic Buckling of Cylindrical Shells under Axial Impact in Hamiltonian System
- A Microscopic Approach to Strain-rate Effect on the Compressive Strength of Concrete-like Materials
- Frontmatter
- Preface
- Multi-Thickness Target Plate Impact Experimental Approach to Failure Waves in Soda-lime Glass and Its Numerical Simulation
- Orientation-dependent Constitutive Model with Nonlinear Elasticity for Shocked β-HMX Single Crystal
- Numerical Simulation of a Shock Tube for Bio-dynamics Study
- Explosive-driven Shock Wave Demagnetization of Nd2Fe14B Hard Ferromagnets
- Large Mass Protection with Close-celled Metallic Foams Under Low Velocity Impact: Spring-damper-foam Collision Model
- Performance Analysis and Optimization of a Dual Warhead System
- Establishment of a Dynamic Mohr–Coulomb Failure Criterion for Rocks
- Nonlinear Damage and Failure Behavior of Brittle Rock Subjected to Impact Loading
- Experiments and Modeling of Failure and Fragmentation of Alumina Cylinders under Uniaxial Compression
- Radiation Characteristics of a Reflector Antenna Under Shock Wave Loading
- Experimental and Numerical Study on the Dynamic Buckling of Ping-pong Balls under Impact Loading
- Dynamic Buckling of Cylindrical Shells under Axial Impact in Hamiltonian System
- A Microscopic Approach to Strain-rate Effect on the Compressive Strength of Concrete-like Materials
Keywords for this article
Impact attenuation;
vibration isolation;
metallic foam;
collision model;
energy absorption;
double degree freedom
Articles in the same Issue
- Preface
- Multi-Thickness Target Plate Impact Experimental Approach to Failure Waves in Soda-lime Glass and Its Numerical Simulation
- Orientation-dependent Constitutive Model with Nonlinear Elasticity for Shocked β-HMX Single Crystal
- Numerical Simulation of a Shock Tube for Bio-dynamics Study
- Explosive-driven Shock Wave Demagnetization of Nd2Fe14B Hard Ferromagnets
- Large Mass Protection with Close-celled Metallic Foams Under Low Velocity Impact: Spring-damper-foam Collision Model
- Performance Analysis and Optimization of a Dual Warhead System
- Establishment of a Dynamic Mohr–Coulomb Failure Criterion for Rocks
- Nonlinear Damage and Failure Behavior of Brittle Rock Subjected to Impact Loading
- Experiments and Modeling of Failure and Fragmentation of Alumina Cylinders under Uniaxial Compression
- Radiation Characteristics of a Reflector Antenna Under Shock Wave Loading
- Experimental and Numerical Study on the Dynamic Buckling of Ping-pong Balls under Impact Loading
- Dynamic Buckling of Cylindrical Shells under Axial Impact in Hamiltonian System
- A Microscopic Approach to Strain-rate Effect on the Compressive Strength of Concrete-like Materials
- Frontmatter
- Preface
- Multi-Thickness Target Plate Impact Experimental Approach to Failure Waves in Soda-lime Glass and Its Numerical Simulation
- Orientation-dependent Constitutive Model with Nonlinear Elasticity for Shocked β-HMX Single Crystal
- Numerical Simulation of a Shock Tube for Bio-dynamics Study
- Explosive-driven Shock Wave Demagnetization of Nd2Fe14B Hard Ferromagnets
- Large Mass Protection with Close-celled Metallic Foams Under Low Velocity Impact: Spring-damper-foam Collision Model
- Performance Analysis and Optimization of a Dual Warhead System
- Establishment of a Dynamic Mohr–Coulomb Failure Criterion for Rocks
- Nonlinear Damage and Failure Behavior of Brittle Rock Subjected to Impact Loading
- Experiments and Modeling of Failure and Fragmentation of Alumina Cylinders under Uniaxial Compression
- Radiation Characteristics of a Reflector Antenna Under Shock Wave Loading
- Experimental and Numerical Study on the Dynamic Buckling of Ping-pong Balls under Impact Loading
- Dynamic Buckling of Cylindrical Shells under Axial Impact in Hamiltonian System
- A Microscopic Approach to Strain-rate Effect on the Compressive Strength of Concrete-like Materials