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Tsarin Sandwich gabaɗaya abubuwan da aka yi su ne da kayan yadudduka uku.Na sama da ƙananan yadudduka na kayan haɗin gwiwar sanwici suna da ƙarfi da ƙarfi da kayan haɓaka, kuma tsakiyar Layer abu ne mai nauyi mai nauyi.Tsarin sanwici na FRP haƙiƙa shine sake haɗa kayan da aka haɗa da sauran kayan masu nauyi.Ana amfani da tsarin sanwici don inganta ingantaccen amfani da kayan aiki da rage nauyin tsarin.Ɗaukar kayan aikin katako-slab a matsayin misali, a cikin aiwatar da amfani, wajibi ne don saduwa da buƙatun ƙarfi da ƙarfi.Halayen gilashin fiber da aka ƙarfafa robobi suna da ƙarfi sosai, Modulus yana da ƙasa.Sabili da haka, lokacin da aka yi amfani da kayan filastik da aka ƙarfafa gilashi guda ɗaya don yin katako da katako don saduwa da buƙatun ƙarfin, jujjuyawar sau da yawa yana da girma sosai.Idan ƙirar ta dogara ne akan jujjuyawar da aka yarda, ƙarfin ƙarfin zai wuce sosai, yana haifar da sharar gida.Ta hanyar ɗaukar ƙirar tsarin sanwici ne kawai za'a iya magance wannan sabani cikin ma'ana.Wannan kuma shine babban dalilin ci gaban tsarin sanwici.

Saboda ƙarfin ƙarfi, nauyi mai sauƙi, babban ƙarfi, juriya na lalata, rufin lantarki da watsawar microwave na tsarin sanwicin FRP, an yi amfani da shi sosai a cikin jirgin sama, makamai masu linzami, jiragen sama da samfura, bangarorin rufin a cikin masana'antar jirgin sama da masana'antar sararin samaniya.Rage nauyin ginin kuma inganta aikin amfani.An yi amfani da fiber na gilashin gilashin da aka ƙarfafa filastik sandwich panel a ko'ina a cikin hasken rufin masana'antu na masana'antu, manyan gine-ginen jama'a da greenhouses a yankunan sanyi.A fagen gine-gine da sufuri, ana amfani da tsarin sanwici na FRP a yawancin sassa a cikin jiragen ruwa na FRP, ma'adinai, da jiragen ruwa.Gada masu tafiya a ƙasa na FRP, gadoji na babbar hanya, motoci da jiragen ƙasa, da dai sauransu da aka ƙera da ƙera a cikin ƙasata duk sun ɗauki tsarin sanwicin FRP, wanda ya dace da buƙatun ayyuka masu yawa na nauyi, ƙarfin ƙarfi, tsayin daka, kariyar zafi da adana zafi.A cikin murfin walƙiya wanda ke buƙatar watsa microwave, tsarin sanwicin FRP ya zama abu na musamman wanda sauran kayan ba za su iya kwatanta su ba.