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Field theory for mechanical criticality in disordered fiber networks
Sihan Chen, Tomer Markovich, Fred C. MacKintosh
Strain-controlled criticality governs the elasticity of jamming and fiber networks. While the upper critical dimension of jamming is believed to be =2, non mean-field exponent…
Effective Medium Theory for Mechanical Phase Transitions of Fiber Networks
Sihan Chen, Tomer Markovich, Fred C. MacKintosh
Networks of stiff fibers govern the elasticity of biological structures such as the extracellular matrix of collagen. These networks are known to stiffen nonlinearly under shear or…
Motor-free contractility of active biopolymer networks
Sihan Chen, Tomer Markovich, Fred C. MacKintosh
Contractility in animal cells is often generated by molecular motors such as myosin, which require polar substrates for their function. Motivated by recent experimental evidence of…