place a strain on (someone or something)
To place an undue or overwhelming burden on someone's or something's resources or ability to cope. I know my brother's illness really placed a strain on our parents. The financial crisis placed a huge strain on the Department of Social Welfare in particular.
place a strain on someone or something
1. Lit. to burden and nearly overwhelm someone or something. The weight of all the trucks placed a strain on the bridge.
2. Fig. to tax the resources or strength of someone, a group, or something to the utmost. All of the trouble at work placed a strain on Kelly. The recession placed a strain on the economy.