Focusing　on　the　nonlinear　hysteresis　behavior　of　Entangled　Metal　Pseudo　Rubber　(EMPR)　under　quasi-static　compression,　this　study　investigates　the　impact　of　self-contact　friction　on　its　energy　dissipation　and　path　memory　characteristics.　By　employing　virtual　manufacturing　and　finite　element　numerical　simulation,　we　digitally　reproduce　the　entire　process　from　wire　winding　to　cold　stamping　and　precisely　tune　the　contact　friction　coefficient　between　wire　turns　under　interference-free　conditions.　The　results　show　that　the　hysteresis　behavior　of　EMPR　can　be　decomposed　into　three　mechanically　meaningful　components:　nonlinear　elastic　backbone　force,　friction　force,　and　hysteretic　force.　Among　these　components,　the　elastic　backbone　force　remains　consistent　as　a　unique　function　of　strain,　while　the　friction　and　hysteretic　contributions　determine　the　opening　of　the　hysteresis　loop　and　the　material＇s　path　memory　features.　Numerical　simulations　and　experimental　validations　demonstrate　that　adjusting　the　friction　coefficient　can　significantly　alter　the　material＇s　energy　absorption　capacity　and　hysteresis　loop　area,　thereby　providing　favorable　conditions　for　extracting,　identifying,　and　verifying　the　physical　meaning　of　the　elastic　backbone　line.　This　study　not　only　deepens　our　understanding　of　the　mesoscopic　frictional　contact　mechanism　in　EMPR　and　the　construction　of　physically　meaningful　hysteresis　constitutive　relationships,　but　also　offers　an　important　theoretical　foundation　and　technical　reference　for　designing　high-performance　EMPR　components.　©　2025