The current state-of-the-art in the development of cellular metal foams is reviewed, with focus on their fabrication, mechanical/thermal/acoustic properties, and potential applications as lightweight panels, energy ab...The current state-of-the-art in the development of cellular metal foams is reviewed, with focus on their fabrication, mechanical/thermal/acoustic properties, and potential applications as lightweight panels, energy absorbers, heat exchangers, and acoustic liners. Foam property charts with scaling relations are presented, allowing scoping and selection through the use of material indices.展开更多
Over the past few years a number of low cost metallic foams have been produced and used as the core of sandwich panels and net shaped parts.The main aim is to develop lightweight structures which are stiff,strong,able...Over the past few years a number of low cost metallic foams have been produced and used as the core of sandwich panels and net shaped parts.The main aim is to develop lightweight structures which are stiff,strong,able to absorb large amount of energy and cheap for application in the transport and construction industries.For example,the firewall between the engine and passenger compartment of an automobile must have adequate mechanical strength,good energy and sound absorbing properties,and adequate fire retardance.Metal foams provide all of these features,and are under serious consideration for this applications by a number of au- tomobile manufacturers(e.g.,BMW and Audi).Additional specialized applications for foam-cored sandwich panels range from heat sinks for electronic devices to crash barriers for automobiles,from the construction panels in lifts on aircraft carriers to the luggage containers of aircraft,from sound proofing walls along railway tracks and highways to acoustic absorbers in lean premixed combustion chambers.But there is a problem.Before metallic foams can find a widespread application,their basic properties must be measured,and ideally modeled as a function of microstructural details,in order to be included in a design.This work aims at reviewing the recent progress and presenting some new results on fundamental research regarding the mi- cromechanical origins of the mechanical,thermal,and acoustic properties of metallic foams.展开更多
基金funds of the U.K. Engineering and Physical Sciences Research Council，partly by the U.S. Office of Naval Research ONR/ONRIFO，ONR of USA，国家自然科学基金
文摘The current state-of-the-art in the development of cellular metal foams is reviewed, with focus on their fabrication, mechanical/thermal/acoustic properties, and potential applications as lightweight panels, energy absorbers, heat exchangers, and acoustic liners. Foam property charts with scaling relations are presented, allowing scoping and selection through the use of material indices.
文摘Over the past few years a number of low cost metallic foams have been produced and used as the core of sandwich panels and net shaped parts.The main aim is to develop lightweight structures which are stiff,strong,able to absorb large amount of energy and cheap for application in the transport and construction industries.For example,the firewall between the engine and passenger compartment of an automobile must have adequate mechanical strength,good energy and sound absorbing properties,and adequate fire retardance.Metal foams provide all of these features,and are under serious consideration for this applications by a number of au- tomobile manufacturers(e.g.,BMW and Audi).Additional specialized applications for foam-cored sandwich panels range from heat sinks for electronic devices to crash barriers for automobiles,from the construction panels in lifts on aircraft carriers to the luggage containers of aircraft,from sound proofing walls along railway tracks and highways to acoustic absorbers in lean premixed combustion chambers.But there is a problem.Before metallic foams can find a widespread application,their basic properties must be measured,and ideally modeled as a function of microstructural details,in order to be included in a design.This work aims at reviewing the recent progress and presenting some new results on fundamental research regarding the mi- cromechanical origins of the mechanical,thermal,and acoustic properties of metallic foams.
