The circumferential strains at the outer surface of the model are measured with strain gages after the tubes are pulled out of the model. 應用電阻應變片測量了換熱管從單管模型中拉出后該模型外表面的周向應變，并根據彈性理論從周向應變計算出殘余接觸壓力的實(shí)驗值。
The tests results proved that better experimental data could only be obtained by the combination of resistive strain measuring and optical fiber strain measuring. 試驗結果證明，只有將電阻應變片測試技術(shù)和光纖應變測試技術(shù)有機結合，才能得到較好的試驗數據。
