Gallup has done some polling on Iranian views on sanctions. While a 56 percent majority say they have hurt "a great deal," they have not changed Iranian views on nuclear power.
It's not clear though, how Iranians feel about nuclear weapons and whether they should endure sanctions for the sake of them.
In any event, Iranians overwhelmingly blame the U.S. for the pain caused by sanctions. Only 10 percent blame the Iranian government itself:
Gallup's Mohamed Younis offers his analysis on the numbers:
Iranians report feeling the effect of sanctions, but still support their country's efforts to increase its nuclear capabilities. This may indicate that sanctions alone are not having the intended effect of persuading Iranian residents and country leaders to change their stance on the level of international oversight of their nuclear program. Iran, as one of the most populous nations in a region undergoing monumental shifts, will remain a key country in the balance of power for the Middle East. Thus, the United States', Russia's, and Europe's relationship with the Iranian people remains a matter of strategic interest. The effect of sanctions on Iranians' livelihoods and the blame they place on the U.S. will continue to be a major challenge for the U.S. in Iran and in neighboring countries such as Iraq. Recent reports that Tehran and Washington might enter into direct talks were short-lived when Iran's supreme leader made a statement strongly rejecting them. With Iran preparing for elections later this year, a turning point is needed to get leaders on both sides out of the current stalemate on the country's nuclear program.