A system (50, 150, 250) for testing at least one test piece, the system (50, 150, 250) comprising: a pressure vessel comprising: a first chamber receiving a first fluid at a first pressure; a second chamber fluidly separated from the first chamber and receiving a second fluid; and an actuating membrane fluidly separating the first chamber from the second chamber, wherein the actuating membrane is configured to apply a second pressure on the second fluid within the second chamber in response to the application of the first pressure by the first fluid on the actuating membrane; a test vessel comprising an internal chamber disposed in fluid communication with the second chamber and at least one test wall defining at least one boundary of the internal chamber, wherein the at least one test wall is coupled to the at least one test piece, wherein the internal chamber is configured to receive the second fluid at the second pressure, and wherein the at least one test wall is configured to apply a first force on the at least one test piece in response to the application of the second pressure by the second fluid on the at least one test wall; and an actuator engaged with the actuating membrane and configured to apply a time-varying force on the actuating membrane while the first pressure is being applied by the first fluid on the actuating membrane, wherein the at least one test wall is further configured to apply a second force on the at least one test piece in addition to the first force in response to the application of the time-varying force by the actuator on the actuating membrane, and wherein the second force is time-varying and is different from the first force. a pressure vessel comprising: a first chamber receiving a first fluid at a first pressure; a second chamber fluidly separated from the first chamber and receiving a second fluid; and an actuating membrane fluidly separating the first chamber from the second chamber, wherein the actuating membrane is configured to apply a second pressure on the second fluid within the second chamber in response to the application of the first pressure by the first fluid on the actuating membrane; a first chamber receiving a first fluid at a first pressure; a second chamber fluidly separated from the first chamber and receiving a second fluid; and an actuating membrane fluidly separating the first chamber from the second chamber, wherein the actuating membrane is configured to apply a second pressure on the second fluid within the second chamber in response to the application of the first pressure by the first fluid on the actuating membrane; a test vessel comprising an internal chamber disposed in fluid communication with the second chamber and at least one test wall defining at least one boundary of the internal chamber, wherein the at least one test wall is coupled to the at least one test piece, wherein the internal chamber is configured to receive the second fluid at the second pressure, and wherein the at least one test wall is configured to apply a first force on the at least one test piece in response to the application of the second pressure by the second fluid on the at least one test wall; and an actuator engaged with the actuating membrane and configured to apply a time-varying force on the actuating membrane while the first pressure is being applied by the first fluid on the actuating membrane, wherein the at least one test wall is further configured to apply a second force on the at least one test piece in addition to the first force in response to the application of the time-varying force by the actuator on the actuating membrane, and wherein the second force is time-varying and is different from the first force.