what is a gigapascal
To: 1 gigapascal [GPa] = 1 x 10 +9 pascal [Pa]. A gigapascal (GPa) is a decimal multiple of the pascal, which is the SI derived unit of pressure, stress, Youngâs modulus and ultimate tensile strength.It is a measure of force per unit area, defined as one newton per square meter.ressure is the ratio of force to the area over which that force is distributed. In other words, pressure is force per unit area applied in a direction perpendicular to the surface of an object. Pressure may be measured in any unit of force divided by any unit of area. The SI unit of pressure is the pascal (Pa).